I sat down to crank out some upgrade packages for 2.1.3 to 2.2, but fairly quickly realized that there wasn’t much point. So much has changed, that the upgrade packages would be enormous. A diff wouldn’t work because images have been added, and a whole bunch of files have been deleted, which means an upgrade would leave a bunch of cruft.
So if you’re upgrading to 2.2, just use the official packages. Cross-branch upgrade files just aren’t worth it.
I’ll have upgrade files for 2.0.11 once it is released, and if 2.2 sees any security/bugfix releases, I’ll do upgrade files for those too.